package cn.itcast.hotel;

import cn.itcast.hotel.config.HotelConstants;
import org.apache.http.HttpHost;
import org.elasticsearch.action.admin.indices.delete.DeleteIndexRequest;
import org.elasticsearch.action.support.master.AcknowledgedResponse;
import org.elasticsearch.client.RequestOptions;
import org.elasticsearch.client.RestClient;
import org.elasticsearch.client.RestHighLevelClient;
import org.elasticsearch.client.indices.CreateIndexRequest;
import org.elasticsearch.client.indices.CreateIndexResponse;
import org.elasticsearch.client.indices.GetIndexRequest;
import org.elasticsearch.common.xcontent.XContentType;
import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;

import java.io.IOException;

public class EsIndexDemo {

    @Test
    public void createIndex() throws IOException {

        //2.封装创建索引库的请求对象
        CreateIndexRequest request = new CreateIndexRequest("hotel");
        //    整个请求参数的Json字符串                    指定参数类型 为JSON
        request.source(HotelConstants.MAPPING_TEMPLATE, XContentType.JSON);
        //3. 调用客户端执行请求
        CreateIndexResponse response = client.indices().create(request, RequestOptions.DEFAULT);
        System.out.println("索引库创建结果："+ response.isAcknowledged());
    }

    RestHighLevelClient client;
    @BeforeEach
    public void init(){
    //1.创建ES的客户端对象
           client = new RestHighLevelClient(RestClient.builder(
                HttpHost.create("http://192.168.200.130:9200")
        ));

    }
    @AfterEach
    public void close(){
        try {
            client.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    @Test
    public void existIndex() throws IOException {
        //1.什么样的操作，就创建对应的请求对象
        GetIndexRequest request = new GetIndexRequest("hotel");
        //2.调用客户端执行请求
        boolean exists = client.indices().exists(request,RequestOptions.DEFAULT);//exists(control+P 获取方法的入参)
        //3.解析响应结果
        System.out.println(exists?"索引库存在":"索引库不存在");
    }
    @Test
    public void deleteIndex() throws IOException {
        //1.什么样的操作，就创建对应的请求对象
        DeleteIndexRequest request = new DeleteIndexRequest("hotel");
        //2.调用客户端执行请求
        AcknowledgedResponse response = client.indices().delete(request, RequestOptions.DEFAULT);
        //3.解析响应结果
        System.out.println("是否删除成功："+response.isAcknowledged());
    }
}
